The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 1995
Filed:
Dec. 28, 1993
Kenth Ohlin, Sollentuna, SE;
Ohlins Racing AB, , SE;
Abstract
A shock absorber has an arrangement for bringing about different kinds of damping characteristics, in response to external controls and independently of how the piston speed varies. The shock absorber comprises a piston which works in a cylinder (2) and which has a passage between upper and lower sides (1a, 1b) of the piston. The changes in the damping characteristics are obtained by a restriction in a channel through which a shock absorber medium or fluid flows. A first valve element (7) exerts an influence on the restriction in response to a first pressure which is created by a pilot flow running between the upper and lower sides at the piston. The pilot flow is determined by a second valve element (8) which is controllable by electrical control signal. The first valve element (7) comprises a spring-loaded, pressure-operated slide, the instantaneous position of which is counterbalanced by the first pressure and a second pressure originating from the pressure differential existing between the upper and lower sides of the piston. The second valve element interacts with a proportional magnet which provides a setting of the first pressure that is independent of the variation in the piston speed.